EP3159552A1 - Expanding rivet connection and method of mounting the same - Google Patents

Abstract

Provided is a Spreiznietverbindung (100) for connecting at least two joining partners (21, 23), comprising a Spreizniet (11), comprising a Spreiznietkörper (110) which is formed such that it can be inserted through recesses of the first joining partner in this and a threaded portion (111) formed to at least partially protrude from the first joining partner after being inserted, a split rivet pin (12) adapted to be pressed into the split rivet body by an opening disposed in the split rivet, to protrude through the first joining partner, and a clamping element (13) which is adapted to be screwed onto the threaded part of the expansion rivet in order to connect at least one further joining partner with the first joining partner. Furthermore, a Spreiznietverbindung for connecting at least three joining partners (21, 22, 23) and a method for mounting the Spreiznietverbindung is provided.

Description

The invention relates to a Spreiznietverbindung according to the preamble of patent claim 1 and a method for assembling the same according to the preamble of claim 14.

Expanding rivets are known to be used for the production of non-detachable connections of two components, wherein the power transmission is generated primarily by positive locking. You can replace the connection with screws, washers and nuts where no detachable connection is required or even undesirable.

Conventional expansion rivets consist of a bolt with setting head and a Spreiznietkörper. For riveting, the split rivet body is passed through the previously punched or drilled rivet holes of the parts to be joined, e.g. the mounting plate, plugged. The expansion rivet is held on the already existing setting head with a tool as an anvil and the free end of the Spreiznietkörpers is deformed by pressure or impact to the closing head. This type of riveting can only be done at riveting sites that are accessible from both sides.

For installation in places that are accessible only from one side, so-called blind rivets are often used. They consist of a hollow rivet, which is penetrated from the side of the closing head of a rivet with a rivet head, which rests on the Spreiznietkörper the rivet, and with a projecting on the side of the setting head mandrel, which is connected via a predetermined breaking point with the rivet pin , For riveting, the blind rivet is placed in rivet holes with the side of the closing head in front, until the setting head of the rivet rests. Thereafter, the rivet is retracted by strong train on the mandrel in the rivet. The rivet shank is spread and deformed. The mandrel breaks at its predetermined breaking point. The necessary traction can only be applied with force-enhancing tools.

Expandable rivets, which can be mounted from one side, have not been continuously clearance-free in the permissible force absorption range. That means that at one Force transmission up to the maximum nominal range, a displacement of the joining partners is possible.

Furthermore, expansion rivets currently have to be mounted from two sides in order to obtain a backlash-free connection. This is cumbersome or not practical in particular in high-frequency (HF) applications, eg in the case of larger assemblies such as antennas. Such a compound is for example in the German patent DE 19840014 C1 disclosed.

It is therefore an object of this invention to provide a one-sided fitted Spreiznietverbindung that holds the joining partners to the rated load and creates a backlash-free connection of the joining partners. This object is achieved by the features of claims 1 and 14. Advantageous embodiments are the subject of the dependent claims.

According to the invention, an expansion rivet connection for joining at least two joining partners, comprising a spreader rivet, which has a spreader rivet body which is formed such that it can be inserted through recesses of the first joining partner, and a threaded part which is formed in such a way that it protrudes from the first joining partner after insertion at least partially. Furthermore, the expansion rivet connection comprises a spreader rivet pin which is adapted to be pressed into the spreader rivet body by an opening disposed in the spreader rivet to project through the first join partner, and a clamp member adapted to be screwed onto the threaded portion of the spreader rivet to connect a third joint partner with the first joint partner.

In a further embodiment, a Spreiznietverbindung for connecting at least three joining partners is proposed, wherein the Spreiznietkörper is formed such that it can be additionally inserted through recesses arranged on the first joining partner second joining partner, and the threaded part is formed such that it is out of the first joining partner and the second joint partner after insertion at least partially protruding, and the Spreiznietstift to is set to be pressed by the arranged in the expansion rivet opening in the Spreiznietkörper to connect the first joining partner and the second joining partner with each other. Furthermore, the clamping element is adapted to be screwed onto the threaded part of the expansion rivet in order to connect at least the third joining partner, which is arranged on the second joining partner connected to the first joining partner.

In a further embodiment, it is provided that the clamping element is designed as a spring element in the form of a nut with plate spring arranged thereon.

As a result of the connection of the first two joining partners via the expansion rivet and the expanding rivet pin, pre-assembly takes place, i. The two joining partners are already firmly enough connected to each other so that they can be exposed to an intermediate step before one or more other joining partners are connected via the clamping element on the two joining partners. Such an intermediate step may involve introduction into e.g. be a surge bath to produce an electrical contact between the first and the second joint partner.

Through the connection of the third joining partner on the clamping element creates a bias of the connection of the joining partners. Through this bias all joining partners can be connected together without play, even if there are fluctuations in the thickness of the joining partners.

In a further embodiment it is provided that the Spreiznietkörper is executed round or square and the threaded part is executed n-square.

The n-square design of the threaded part allows the one-sided assembly of the Spreiznietverbindung, as it represents an anti-rotation. The expansion rivet body can be round or square, depending on the application. Also, cuts or other structural features to optimize the production of the connection and the rotation can be present.

In a further embodiment, it is provided that at least one stop is arranged on the expansion rivet, at least between the expansion rivet body and the threaded part. Advantageously, the stopper is designed such that a surface facing the threaded part thereof serves as a safeguard against pulling out the expansion rivet when tightening the clamping element, and wherein the thickness of the stopper predetermines the path of the prestressing produced by screwing on the clamping element (13).

The stop is used primarily to prevent withdrawal of the expansion rivet when tightening the clamping element. By providing the stop, a path-controlled preload can be realized, so that frictional forces arising from material or construction play no role in tightening the clamping element, so that a play-free connection between the joining partners can be achieved. The thickness of the stop specifies the path of the bias. By arranging further stops, e.g. on the threaded part, different biasing forces between joining partners can be realized in order to realize a backlash-free connection.

In a further embodiment, it is provided that at least one spacer is arranged on the expansion rivet between the expansion rivet body and the threaded part. According to one embodiment, the spacer is connected to the expansion rivet via at least one resilient element. According to a further embodiment, two spacers are arranged opposite one another on the expansion rivet between the expansion rivet body and the threaded part. According to one embodiment, the thickness of the spacer corresponds to the distance between two joining partners. In a further embodiment it is provided that each of the spacers is different or the same as a cylinder, a ball, cone or double cone or has a rectangular shape. According to a further embodiment, the spacer is formed around the entire circumference of the threaded part.

The spacer compensates for a distance between two joining partners. Such a distance may arise due to thickness variations in the manufacture or be predetermined by the joining partners. For RF applications, the distance For example, arise from the fact that a screen cover is used as a joining partner, which forms a distance from its joining partner by its shape and function. The spacer then also serves to compensate for the force resulting from the clamping element on the corresponding joining partner, so that this undergoes no deformation. This is supported by the resilient element, as this allows a movement of the spacer during assembly. Thus, the biased joining partners remain in the predetermined position even under thermal or mechanical stress due to environmental influences. Also, this is supported by a shape in which a movement is possible due to the forces acting thereon. As a result, the at least one resilient element is less heavily loaded and not bent.

Furthermore, the invention provides that the Spreiznietkörper and / or the threaded part and / or the Spreiznietstift and / or the clamping element are formed from fiberglass.

Glass fiber plastic is a very hard material that can absorb high forces with small component size without being damaged or deformed, so that a higher-strength connection is formed. Thus, a backlash-free connection can be ensured.

• Schritt 1: Einstecken des Spreiznietkörpers des Spreizniets in Ausnehmungen des ersten Fügepartners (21) und des bzw. der weiteren Fügepartner (22), wenn vorhanden,
• Schritt 2: Einstecken des Spreiznietstifts in die Öffnung des Spreizniets, so dass eine feste Verbindung zwischen dem ersten Fügepartner (21) und dem bzw. den weiteren Fügepartnern (22) entsteht, wenn vorhanden"
• Schritt 3: Aufbringen zumindest eines dritten Fügepartners auf den ersten Fügepartner oder dem bzw. den mit dem ersten Fügepartner verbundenen weiteren Fügepartnern über den Gewindeteil des Spreizniets"
• Schritt 4: Befestigen des zumindest einen dritten Fügepartners mittels des Klemmelements an dem ersten Fügepartner oder dem mit dem bzw. den ersten Fügepartner verbundenen weiteren Fügepartnern.

A method for assembling the split rivet connection according to one of the preceding claims is further provided within the scope of the present invention, comprising the following steps:

• Step 1: inserting the expansion rivet body of the expansion rivet into recesses of the first joining partner (21) and of the other joint partner (s) (22), if present,
• Step 2: inserting the Spreiznietstifts into the opening of the Spreizniets, so that a firm connection between the first joining partner (21) and the or the other joining partners (22) arises, if available "
• Step 3: Applying at least one third joining partner to the first joining partner or to the other joining partner (s) connected to the first joining partner via the threaded part of the expanding rivet "
• Step 4: Attaching the at least one third joining partner by means of the clamping element to the first joining partner or the other joining partners connected to the first joining partner.

It is further provided within the scope of the present invention that the method comprises a further step 2a between steps 2 and 3, namely, for example, introducing the first joining partner provided with the expanding rivet or the first and further joining partners connected to the expanding rivet Generation of an electrical connection of the joining partners.

The advantages of staged assembly are described above.

The inventive Spreiznietverbindung and the method, it is possible to connect two or more than two joining partners with each other without play. In this case, a high degree of flexibility is possible in the assembly of the third and further joining partners by means of the existing threaded part protruding from the joining partners. The pre-assembly of the first joining partner or of the first joining partner to be joined together already creates a firm connection, so that it is possible to carry out one or more intermediate steps before the assembly of the third and further joining partners.

Further features and advantages of the invention will become apparent from the following description of embodiments of the invention, with reference to the figures of the drawing, the inventive details shows, and from the claims. The individual features can be realized individually for themselves or for several in any combination in a variant of the invention.

• Fig. 1 zeigt eine Schnittdarstellung einer montierten Spreiznietverbindung gemäß einer Ausführung der vorliegenden Erfindung.
• Fig. 2 zeigt eine Schnittdarstellung eines Spreizniets gemäß einer weiteren Ausführung der vorliegenden Erfindung.
• Fig. 3 zeigt eine Schnittdarstellung einer Ansicht des Abstandshalters eines montierten Spreizniets aus Figur 2 gemäß einer Ausführung der vorliegenden Erfindung.
• Fig. 4 zeigt eine Schnittdarstellung einer Ansicht des Anschlags eines montierten Spreizniets aus Figur 2 gemäß einer Ausführung der vorliegenden Erfindung.

Preferred embodiments of the invention are explained below with reference to the accompanying drawings.

• Fig. 1 shows a sectional view of a mounted Spreiznietverbindung according to an embodiment of the present invention.
• Fig. 2 shows a sectional view of a Spreizniets according to another embodiment of the present invention.
• Fig. 3 shows a sectional view of a view of the spacer of a mounted Spreizniets FIG. 2 according to an embodiment of the present invention.
• Fig. 4 shows a sectional view of a view of the stop of a mounted expansion rivet FIG. 2 according to an embodiment of the present invention.

In the following description of the figures, the same elements or functions are provided with the same reference numerals.

FIG. 1 shows a sectional view of a Spreiznietverbindung 100, which connects three joining partners 21, 22, 23 with each other in this illustration, wherein in this view the Spreiznietstift 12 is not yet fully pressed into the Spreizniet 11. The expansion rivet connection 100 comprises three parts: an expansion rivet 11, a expansion rivet 12 inserted into a corresponding opening of the expansion rivet 11, and a clamping element 13 designed here as a spring element in the form of a nut with a plate spring. The clamping element 13 does not necessarily have to be designed as a spring element may rather be designed as a mother or bayonet lock.

The expansion rivet 11 is substantially divided into two parts, a Spreiznietkörper 110, which is formed so that it dives into the joining partners 21, 22 and 23 after complete assembly, and a threaded portion 111 which is formed such that it after insertion of the Spreizniets 11 in the corresponding mounting holes of the joining partners 21, 22 and 23 protrudes at least partially from this. The expansion rivet 11 is first inserted to make the connection in mounting holes of two of the joining partners 21, 22. Preferably, the expansion rivet 11 at the boundary between Spreiznietkörper 110 and threaded portion 111 in a FIG. 2 shown stop 113, to which the expansion rivet 11 is inserted into the mounting holes of the joining partners 21, 22.

The Spreiznietstift 12 is pressed by a arranged in Spreizniet 11 opening 112 in the Spreizniet 11 from the same side, as the Spreizniet 11 in the joining partners 21, 22. Thus, already after the first part of the assembly, a firm connection between two joining partners 21st , 22. These joining partners 21, 22 are in RF applications usually arranged on a circuit board antenna element 21, such as a dipole, and a shield cover 22. The connection is such that the threaded portion 111 of the expansion rivet 11 facing away from the dipole Side, so the bottom of the circuit board, protruding, and this may be different depending on the application.

By spreading the in FIG. 2 shown jaws 115 of the Spreiznietkörpers 110, the system can easily compensate for thickness tolerances of the joining partners 21, 22, since no undercut of the jaws on the joining partner 21, 22 is necessary for clamping, but a high frictional force on the joining partner 21, 22 is generated.

The shape of the expansion rivet 11 is mainly dependent on the specifications for the application, but is due to the mounting of one side advantageously such that a security against rotation is given. This is to be realized in that the threaded portion 111 of the Spreizniets 11 is not round, but has a structure, advantageously an n-angular shape, i. flattened at least on one side to absorb the torque acting thereon. The expansion rivet body 110, however, may be round or n-shaped. By a not completely round shape forms a rotation or fixed component alignment, e.g. between dipole and screen cover.

Now, if necessary, the two joining partners 21, 22 which are already firmly connected to one another can be processed in an intermediate step, e.g. electrically connected to each other. This can be done, for example, by being sent through a wave soldering bath.

By Spreizniet 11 and Spreiznietstift 12, the first two joining partners 21, 22 are firmly connected. In order to connect a further joining partner 23 with the two already joined joint partners 21, 22, a trained as a spring element Clamping element 13 provided. This spring element 13 is screwed onto the threaded part 111 of the expansion rivet 11 in order to connect at least one third joining partner 23 arranged on the two connected joining partners 21, 22 to the two connected joining partners 21, 22 such that a prestressing of the connection of the joining partners 21, 22 , 23 arises.

The third joining partner 23 may be in HF applications an adapter plate or other component to be applied to the back side of the second joining partner 22, e.g. a circuit board connected to a screen cover with a dipole disposed thereon.

The spring element 13 is preferably designed as a nut with plate spring, since a simple force or torque-controlled bias voltage can be generated here. By trained as a mother with disc spring spring element 13, the connection can be exactly biased and a possible setting of the joining partners 21, 22, 23 or an expansion of the joining partners 21, 22, 23 are compensated due to temperature fluctuations. Preferably, the plate spring is provided with slots, and this may not be necessary depending on the application. Eliminating or reducing the number of slots requires a higher spring rate, more force to compress the spring to the same position.

Due to the spring element 13 with the possibility of exerting a corresponding force on the joining partners 21, 22 and 23 via the thread, i. To produce a bias, a backlash-free connection over the entire joining region between the joining partners 21, 22 and 23 is achieved.

By the protruding from the joining partners 21, 22 and 23 threaded portion 111 of the Spreizniets 11 further (not shown) joining partners can be added in addition to the third joint partner. This can be done by these additional joining partners are applied directly to the third joint partner 23, or mounted over another spring element, so to speak, upside down or mirror inverted. As a further possibility of adding a joining partner, such as a reflector in RF applications, this can on the spring element 13 in the form of a bulge or an opening and attached by means of a union nut. In addition, further stops can be attached to the threaded part 111 of the expansion rivet 11, if this is necessary or advantageous for the respective application.

Preferably, the entire Spreiznietverbindung 100 is made of a fiberglass, with only individual parts thereof may be formed from this material. Glass fiber plastic is significantly harder, compared to previously used polyamide plastic such as nylon, i. larger forces can be absorbed. This makes it possible to work with high forces and biases.

FIG. 2 shows view of a Spreizniets 11 according to another embodiment. In the FIG. 1 Reference numerals used denote the same elements, so a repetition is omitted here. The expansion rivet 11 shown comprises, in addition to the stop 113, at least one spacer 114 at the transition between the expansion rivet body 110 and the threaded part 111. The spacer 114 is fastened to the expansion rivet 11 via a resilient element, so that it is in and against the insertion direction of the expansion rivet 11 can move. Preferably, two stops 113 and two spacers 114 are opposite.

The spacers 114 are in FIG. 2 formed as a cylinder, but may also have other shapes, as long as they have the desired thickness. The further away the shape from a circle or cylinder, the higher spring rates must be used. This is related to FIG. 3 explained in more detail.

The spacer 114 can also be formed completely around the expansion rivet 11, whereby care must be taken here that no impairment of the properties of the joining partners 21 or 22 takes place.

FIG. 3 shows a sectional view of a view of the spacer 114 of a Spreizniets 11 from FIG. 2 , In the Figures 1 and 2 Reference numerals used denote the same elements, so a repetition is omitted here. In the FIG. 3 The illustration shown shows fully biased and feathered over the spacer 114 joining elements 21, 22, 23, ie the nut 13 is except for the full bias of the diaphragm spring turned. The stop 113 and the spacer 114 are located between the first joining partner 21, which may be an antenna element in RF applications, eg a dipole arranged on a printed circuit board, and the second joining partner 22, which may be a screen cover in HF applications. Since the screen cover 22 of the circuit board via its pins or terminals at a predetermined distance, for example, 2 mm, is arranged, can be the same when attaching the mother with excessive force applied depressions of the screen cover and thus damage done. In addition, in such a case, the surface pressure would be reduced. By the spacer 114 this disadvantage is overcome. Due to the resilient elements of the spacer 114, compensation can be made for variations in the thickness of the gap.

Preferably, the spacer 114, as in FIG FIG. 3 shown, a cylindrical or spherical shape, as this smaller spring rates must be expended. This is due to the fact that by the tightening of the clamping element 13, a bias voltage is generated. The forces acting are absorbed by the spacer 114 with its resilient elements. The shape of the spacer determines whether the resilient elements must be bent by higher force, ie higher spring rates, or whether the spacer can rotate or roll on the spot so to speak. This means that the resilient elements do not bend due to the rotation or rolling of the spacer 114, but can fully exploit their resilient action. The frictional forces acting on a spacer 114 formed in this way are significantly lower than the rotational force acting thereon. Therefore, in a non-square shape of the spacer 114, eg, the shape of a ball or a cylinder, a much lower spring rate is to be used than in a circle-removing shape of the spacer 114.

FIG. 4 shows a sectional view of a view of the stop 113 of a Spreizniets 11 FIG. 2 , This view is the same as the view FIG. 3 just turned 90 degrees. In the FIGS. 1, 2 and 3 Reference numerals used denote the same elements, so a repetition is omitted here. In the FIG. 4 The illustration shown shows fully biased and sprung over the spacer 114 Joining elements 21, 22, 23, ie the nut 13 is rotated to the full bias of the plate spring. The stop 113 and the spacer 114 are located between the first joining partner 21, which may be an antenna element in RF applications, eg a dipole arranged on a printed circuit board, and the second joining partner 22, which may be a screen cover in HF applications. The stopper 113 preferably has a smaller thickness than the distance between the two joining partners 21 and 22. The stopper 113 has a thread side 111 of the expansion rivet 11 facing surface 1131, by their arrangement pulling out of the expansion rivet 11 when tightening the clamping member 13 is prevented , Although the expansion rivet 11 can be pulled through the component, here the screen cover 21, through a certain distance, eg 1 mm, it then rests against the joining partner 22 with its surface 1131, so that no further pulling out of the expansion rivet 11 is possible can be done. That is, a stop-controlled bias is possible by this stop 113, wherein the thickness of the stopper and the distance between the joining partners predetermines the path W of the bias voltage. This has the advantage that it can be set very accurately during assembly, as far as the expansion rivet 11 must be tightened in order to achieve a backlash-free connection of the joining partners. To finally tighten the connection, the nut can be tightened controlled torques, which can be done by the stop 113 no spinning or pulling out of the expansion rivet 11.

In addition, by means of the stop 113 or a plurality of stops 113 (not shown in the figures) placed at different points of the expansion rivet 11, different biasing forces can be applied between different joining partners, e.g. between the dipole and the shield cover and between the printed circuit board and the adapter plate.

The inventive Spreiznietverbindung opens up the possibility to provide a multi-stage assembly. This means that first two joining partners are connected to each other by means of expanding rivet and expanding rivet pin or only one expanding rivet with expanding riveting pin is inserted into a single joining partner. These bonded partners may then be exposed in a process such as a solder wave or other steps, for example, to be electrically contacted become. Thereafter, one or more other joining partners can be mounted from the same side by means of the threaded part and the spring element on the two joining partners, so that a play-free connection is formed. Furthermore, a compensation of the thickness and a compensation of fluctuations between the joining partners is possible by the bias, so that a displacement of the joining partners to each other is prevented. By providing a stop, a path-controlled pretensioning is realized and prevents the expansion rivet from being pulled out of the joining partners when the clamping element is tightened.

LIST OF REFERENCE NUMBERS

100

Spreiznietverbindung

11

Spreizniet

110

Spreiznietkörper

111

threaded part

112

Opening in the expanding rivet

113

attack

1131

Top of the stop

114

spacer

115

to bake

12

Spreiznietstift

13

clamping element

21

First joint partner

22

Second joint partner

23

Third joint partner

W

Way of bias

Claims (15)

An expansion rivet connection (100) for connecting at least two joining partners (21, 23), comprising: - An expansion rivet (11) comprising a split rivet body (110) which is formed so that it can be inserted through recesses of the first joining partner (21) in this, and a threaded part (111) which is formed such that it at least partially protrudes from the first joining partner (21) after being inserted, a split rivet pin (12) adapted to be pressed into the split rivet body (110) by an opening (112) disposed in the expansion rivet (11) to project through the first joining partner (21), and - A clamping element (13) which is adapted to be screwed onto the threaded portion (111) of the Spreizniets (11) to connect at least a third joining partner (23) with the first joining partner (21). An expansion rivet connection (100) according to claim 1 for connecting at least three joining partners (21, 22, 23), wherein: - The expanding rivet body (110) is formed such that it can be additionally inserted through recesses of a first joining partner (21) arranged second joining partner (22), and - The threaded portion (111) is formed such that it protrudes from the first joining partner (21) and the second joining partner (22) after insertion at least partially, the expansion rivet pin (12) is adapted to be pressed into the expansion rivet body (110) by the opening (112) arranged in the expansion rivet (11) in order to connect the first joining partner (21) and the second joining partner (22) to one another, and - The clamping element (13) is adapted to be screwed onto the threaded portion (111) of the Spreizniets (11) to at least a third joining partner (23) on the first joint partner (21) connected to the second joining partner (22) is arranged to connect. An expanding rivet connection according to claim 1 or 2, wherein the clamping element (13) is designed as a spring element in the form of a nut with plate spring arranged thereon. An expansion rivet connection according to one of the preceding claims, wherein the expansion rivet body (110) is round or n-cornered and the threaded part (111) is of an angular design. An expansion rivet connection according to one of the preceding claims, wherein at least one stop (113) is arranged on the expansion rivet (11) at least between the expansion rivet body (110) and the threaded part (111). An expansion rivet joint according to claim 5, wherein the stopper (113) is formed such that a surface (1131) thereof facing the threaded portion (111) serves as a safety against withdrawal of the expansion rivet (11) when the clamping element (13) is tightened, and wherein the thickness of the stopper (113) defines the path (W) of the prestressing produced by screwing on the clamping element (13). An expansion rivet connection according to one of the preceding claims, wherein at least one spacer (114) is arranged on the expansion rivet (11) between the expansion rivet body (110) and the threaded part (111). An expansion rivet connection according to claim 7, wherein the spacer (114) is connected to the expansion rivet (11) via at least one resilient element. An expansion rivet joint according to claim 7 or 8, wherein two spacers (114) are disposed opposite to the expansion rivet (11) between the expansion rivet body (110) and the threaded portion (111). An expansion rivet connection according to any one of claims 7 to 9, wherein the thickness of the spacer (114) corresponds to the distance between two joining partners (22, 23). An expansion rivet joint according to any one of claims 7 to 10, wherein each of the spacers (114) is differently or equally formed as a cylinder, a ball, a cone or a double cone or has a rectangular shape. An expansion rivet joint according to any one of claims 7 to 11, wherein the spacer (114) is formed around the entire circumference of the threaded portion (111). An expansion rivet connection according to one of the preceding claims, wherein the expansion rivet body (110) and / or the threaded part (111) and / or the expansion rivet pin (12) and / or the clamping element (13) are formed from fiberglass plastics. Method of assembling the split rivet connection (100) according to one of the preceding claims, comprising the following steps: Step 1: inserting the expansion rivet body (110) of the expansion rivet (11) into recesses of the first joining partner (21) and of the further joining partner (s) (22), if present, - Step 2: inserting the Spreiznietstifts (12) in the opening (112) of the Spreizniets (11), so that a firm connection between the first joining partner (21) and the or the other joining partners (22) arises, if available Step 3: applying at least one third joining partner (23) to the first joining partner (21) or the further joining partner (22) connected to the first joining partner (21) via the threaded part (111) of the expanding rivet (11), Step 4: fastening the at least one third joining partner (23) by means of the clamping element (13) to the first joining partner (21) or to the further joining partner (22) connected to the first joining partner (21). A method according to claim 14, wherein the method between steps 2 and 3 comprises a further step 2a: introducing the first joining partner (21) provided with the expansion rivet (11) or the first and further joining partners (21, 21) connected to the expansion rivet (11). 22) in a device for generating electrical contacts of the joining partners (21, 22).

Images